Can: solve most any problem with under six numbers (like: 16+199+20+54+48+85) also gives the circumference of half circles. you just gotta input the diameter (radius*2= diameter) this will do the rest (only multiply by 3.14 or pi's most commonly used number) also accepts "." (only non number that will not mess you up) cannot: do mutifunctional problems. (such as 12+2.5-14.5*3/1(but, you can take your previous answers and copy them onto the next number.)
currently, addition and circumference are the only two that'll give you the correct answer, it takes a while replacing the operator blocks.
